Penny Webster is a former mayor of Rodney District and a councillor on the Auckland Council. As mayor of Rodney she headed one of the six main local government entities generally considered as making up the Auckland metropolitan area (Auckland City, Manukau City, Waitakere City, North Shore City, Papakura District, Rodney District), with her district being the northernmost entity. All of these entities were merged into the new Auckland Council in 2010. She was also a former New Zealand politician: an MP from 1999 to 2002, representing the ACT New Zealand party.
Before entering politics, Webster was a farmer, and headed the Auckland branch of the Federated Farmers organisation.